JP3514928B2 - Water tap with saddle - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water faucet with a saddle, and more particularly to, for example, branching a water supply pipe (branch pipe) from a water distribution pipe (main pipe) of a water pipe. And a water faucet with a saddle attached to the pipe wall of the water distribution pipe. 2. Description of the Related Art A conventional water tap with a saddle 1 of this kind shown in FIG. 6 is provided with a saddle 2 having a half-split structure arranged at a predetermined position of a main pipe (not shown), and attached to the saddle 2. And a water tap 3 connected to the branch pipe. When perforating the main pipe at a position corresponding to the water faucet 3, the cap 3a provided on the upper part of the water faucet 3 is removed, and water in the main water is discharged to the outside using a special tool for perforation. Drilling work is performed while preventing leakage to the drain. On the other hand, a branch portion 4 with a saddle for a resin pipe shown in FIG. 7 includes a saddle 5 attached to the main pipe by electric fusion or the like, and a branch portion 6 provided integrally with the saddle 5. When piercing at a position corresponding to the branch 6 in the main pipe, the cap 6a attached to the upper part of the branch 6 is removed, and the cutter 7 disposed inside the branch 6 is pressed toward the main pipe, Perform drilling work. After the perforation, the cutter 7 and the like pushed into the main pipe are pulled out, and
Then, the cap 6a is attached to the upper part of the branch portion 6 again. [0004] In the water faucet with a saddle 1 shown in FIG. 6, drilling work is performed using a special tool for drilling, but this tool is large in size. Since the work procedure is complicated, there is a problem that workability is poor. In the branching section 4 with a saddle shown in FIG. 7, since a valve body such as a water tap is not provided in the branching section 6, when the cap 6a is removed and the main pipe is pierced, water in the main pipe is discharged to the outside. There was a problem that it leaked. As one means for solving these problems, a vertically continuous screw portion is provided in the water faucet 3 shown in FIG. 6, and a drilling blade is arranged through this screw portion to reduce water stoppage. It is conceivable to perform the drilling operation while securing. That is, the drilling blade is rotated and moved downward by the screw portion to pierce the main pipe, and then, is rotated in the reverse direction and pulled up to the upper part of the water faucet 3. However, a ball or the like functioning as a valve is disposed in the water faucet 3, and it is difficult to provide a continuous screw portion on another part of the water faucet 3 and the ball. [0006] Therefore, a main object of the present invention is to provide a water faucet with a saddle capable of easily performing a drilling operation on a main pipe while ensuring water stoppage. SUMMARY OF THE INVENTION The present invention relates to a saddle attached to the outer surface of a pipe, a water faucet communicating with the pipe via the saddle and having a branch pipe connection, and a water faucet connected to the saddle. Adapter having a double short pipe structure of an outer short pipe to be formed and an inner short pipe arranged inside the outer short pipe, and a perforation arranged to be movable in the vertical direction via a screw portion provided in the inner short pipe. It is a faucet with a saddle equipped with a cutting blade. [0008] Using a tool placed on the water faucet via a water-stopping component, the drilling blade is rotated to move to the saddle side, and is pressed against the pipe to which the saddle is attached to perform drilling work. I do.
After the operation, the drilling cutter is rotated in the opposite direction and returned to a predetermined position, and the pipe formed between the outer short pipe and the inner short pipe of the adapter communicates with the inside of the pipe through this hole. . The water flowing in the pipe is guided to the water faucet through a perforated hole and a pipe formed between the outer short pipe and the inner short pipe. According to the present invention, by moving the drilling tool disposed in the short pipe inside the adapter, the pipe is bored and the flow path from this pipe to the water faucet is formed. Therefore, it is possible to easily perform the drilling operation on the pipe while securing the water stoppage. The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings. FIG. 1 is a perspective view of a water faucet with a saddle of this embodiment shown in FIG.
Is used when a water supply pipe 14 which is a branch pipe is branched from a water distribution pipe 12 which is a main pipe forming a water pipe, and a saddle 16 attached to the water distribution pipe 12 by electric fusion or the like, 16 and a water faucet 20 attached via an adapter 18. Referring to FIG. 1 and FIG.
Is an outer short tube 22 connecting the saddle 16 and the faucet 20.
And the inner short pipe 24, and the outer short pipe 22 and the inner short pipe 24 are connected by a plurality of (four in this embodiment) ribs (spokes) 26 continuous in the pipe axis direction. Is done. An internal thread 24a is provided on the inner surface of the inner short pipe 24 in the axial direction.
A short tubular drilling blade 28 in which a male screw portion 28a that can be screwed into a is continuously provided on the outer surface is arranged. A hexagonal hole 28b having a predetermined hexagonal depth as viewed from the tube axis direction is formed on the inner surface of the upper end portion of the drilling blade 28.
At the lower end of 8, there is provided a drilling blade 28c which is sharpened downward. Here, since the female screw portion 24a provided on the inner surface of the inner short tube 24 and the male screw portion 28a provided on the outer surface of the drilling blade 28 are provided continuously in the pipe axis direction, when the drilling blade 28 is rotated. The vertical position of the drilling blade 28c in the tube axis direction can be freely moved and adjusted. The upper end of the outer short tube 22 is formed to extend further upward from the upper end of the inner short tube 24, and has a tapered female screw portion on its inner surface for screwing and fixing the lower end 20a of the water faucet 20. 22a is provided. On the other hand, outer short pipe 2
A flange 22b is provided at a predetermined position on the outer surface of the second member.
The lower end of the outer short tube 22 is inserted into a cylindrical mounting portion 16a provided substantially at the center of the saddle 16, and at this time, the flange 22b is locked on the upper surface of the mounting portion 16a. Also,
A male screw portion 16b is provided on an outer surface of the mounting portion 16a, and a cap nut 30 is sandwiched between the male screw portion 16b and the flange 22b from above.
The adapter 18 is fixed to the mounting portion 16a of the saddle 16 by screwing the. The water faucet 20 is formed in a cross tube shape, and a lower end 20a which is one end thereof is screwed from an upper end of the adapter 18 and fixed. In addition, the upper end 2 of the faucet 20
A female screw portion provided on the inner surface of the cylindrical cap 32a is screwed to the outer surface of Ob, and the cap 32a is fixed to the upper end portion 20b with the gasket 32b interposed therebetween. Water faucet 2
A male thread is formed on the outer surface of the one (left side in FIG. 1) side end 20c of the wire 0, and the feed pipe 14 as a branch pipe is connected to this thread via a joint 34. A ball 36 having the function of a valve is disposed at a substantially central position, which is an intersection in the cross-shaped water faucet 20. The ball 36 has upper and lower ends 20 a of the water faucet 20.
A through-hole 36a that connects the pipelines of the through-hole 20a and the pipeline of the (left) side end 20c is formed in a T-shape. In addition, a stopper rod 38 whose one end protrudes outward is disposed in the other (right) side end portion 20d of the water faucet 20. And plug rod 3
The other end of 8 is connected to the ball 36 via the uneven portion. Here, the stopper rod 38 having one end protruding outside the water faucet 20 is set at 90 ° (with respect to the horizontal axis from the state of FIG. 1).
Upon rotation (closing the faucet 20), the ball 36 coupled to the faucet rod 38 is similarly rotated. Then, faucet 2
The upper end of the pipeline in the lower end 20a of the zero is closed by the ball 36, and the pipeline to the upper end 20b and the (left) side end 20c is closed. When connecting the water supply pipe 14 which is a branch pipe to a predetermined position of the water distribution pipe 12 using such a water faucet with a saddle, first, a cylinder provided substantially at the center of the outer surface of the saddle 16 is used. The outer short pipe 2 of the adapter 18 is provided
2 and the flange 22b of the outer short tube 22 is engaged with the upper end surface of the mounting portion 16a of the saddle 16. In this state, using the cap nut 30, the inner surface thereof is attached to the mounting portion 16a.
The adapter 18 is fixed to the saddle 16 so as to be screwed into the male screw portion 16b provided on the outer surface of the saddle 16 and sandwich the flange 22b. Then, the saddle 16 is placed at a predetermined position of the water distribution pipe 12.
Is fixed by electrofusion. At this time, the lower end portion 20a of the water faucet 20 is previously screwed and fixed to the tapered female screw portion 22a at the upper portion of the inner surface of the outer short tube 22 of the adapter 18, and the cap nut 30
Before screwing the water faucet 20, both ends 20c (and 2
0d) is rotated and adjusted in a desired direction. Thereafter, the (left) side end 20c of the water faucet 20 arranged in a desired direction.
The water supply pipe 14 is connected using a joint 34. Subsequently, as shown in FIG. 3, the cap 32a and the gasket 32b disposed on the upper end 20b of the water faucet 20 are removed, and a cylindrical water-stopping part 4 is attached to that part.
2 so that the inner surfaces are screwed together. Then, the tip of a T-shaped hexagon wrench 44 is inserted into a hole formed substantially at the center of the water stopping component 42 via a seal ring 42a. Then, the tip is passed through the upper end 20b of the water faucet 20, the through hole 36a of the ball 36, and the lower end 20a.
It fits into the hexagonal hole 28b of the drilling blade 28 arranged on the inner surface of the inner short tube 24 in the adapter 18. In this state, the hex wrench 44 is rotated so that the drilling tool 28 is
a is lowered from the adapter 18 by a.
Is pressed against the outer surface of the water distribution pipe 12 to form a branch hole 46 in the pipe wall of the water distribution pipe 12. Thereafter, the hexagon wrench 44 is rotated in the opposite direction to raise the drilling blade 28 to a predetermined position.
2, the outer short pipe 22 and the inner short pipe 2 of the adapter 18.
4 and a pipe formed between them. Then, the tip of the hexagon wrench 44 is detached from the hexagon hole 28b of the drilling blade 28 and pulled up, and the tip is placed in the upper end 20b of the water tap 20 (position above the ball 36). Rotate the tap rod 38 of the faucet 20 by 90 °
Rotate to close the faucet 20. Hex wrench 4 in this state
4 and the water stopping component 42 are removed from the water faucet 20, and the cap 32a and the gasket 32b are attached to the upper part of the water faucet 20 again (FIG. 1). Although not shown, a part of the water pipe 12 removed by the perforation work is
It is left in a state of being fitted inside the drilling blade 28. In the water faucet with saddle 10 in which the water pipe 12 is pierced in this manner, the plug rod 38 is turned 90 °.
When the water faucet 20 is opened by rotating, the water flowing in the water distribution pipe 12 passes through the branch hole 46, the conduit between the outer short pipe 22 and the inner short pipe 24 of the adapter 18, and the lower end of the water faucet 20. Part 20a
The water is supplied to the inside of the water supply pipe 14 through the inside of the through hole 36a and the hole 36b of the ball 36 and the side end 20c. According to this embodiment, the piercing operation is performed by raising and lowering the piercing blade 28 in the adapter 18 using the hexagon wrench 44, so that the water stoppage is achieved without using a conventional dedicated tool for piercing. Thus, it is possible to easily perform the drilling work on the water distribution pipe 12 while ensuring the above. A faucet with a saddle 50 of another embodiment shown in FIG. 4 is fixed to the water distribution pipe 12 by using bolts and nuts 52a instead of the saddle 16 for electric fusion of the faucet with a saddle 10 shown in FIG. To which a saddle 52 having a half-split structure is attached. A female screw portion 54a is provided on an inner surface of a cylindrical mounting portion 54 provided at one predetermined position of the saddle 52.
On the other hand, on the outer surface of the outer short tube 22 of the adapter 18, a male screw portion is provided instead of the flange 22b.
Then, the adapter 18 and the water tap 20 are fixed to the saddle 52 by screwing the male screw portion into the female screw portion 54 a of the mounting portion 54. A ring-shaped gasket 56 is disposed at a position corresponding to the mounting portion 54 on the mounting surface of the saddle 52 to the water distribution pipe 12. When the saddle 52 having the half-split structure is fixed to the water distribution pipe 12 using bolts and nuts 52a, the gasket 56 is compressed, and the water stoppage of the mounting surface between the saddle 52 and the water distribution pipe 12 is increased. A water faucet with a saddle 60 according to another embodiment shown in FIG. 5 is obtained by fusing the adapter 62 into the mounting portion 16a of the saddle 16 using the adapter 62 obtained by modifying the adapter 18 used in the embodiment of FIG. It is intended to be fixed. A resin layer 64 made of polyethylene or the like that is continuous in the circumferential direction is provided below the outer peripheral surface of the adapter 62 (refer to FIG. 5). On the other hand, a coil-shaped heating wire 16c made of a magnetic alloy wire or the like is embedded in the inner surface of the attachment portion 16a of the saddle 16. Further, inside the adapter 62, an inner short pipe 68 and a drilling blade 70 are arranged similarly to the adapter 18 shown in the embodiment of FIG. When fixing such an adapter 62 to the mounting portion 16a of the saddle 16, first, the resin layer 64 side of the adapter 62 is inserted into the mounting portion 16a. Next, a ring-shaped induction work coil (not shown) is arranged so as to cover the entire heating wire 16c from the outside of the mounting portion 16a. Then, a high-frequency current is supplied to the work coil, and an eddy current is generated in the heating wire 16c by electromagnetic induction to generate heat. Then, this heat causes the inner surface of the mounting portion 16a and the resin layer 6
4 is melted, and the adapter 62 is fusion-bonded to the saddle 16. Also in this embodiment, it is needless to say that the branching hole 46 is provided by performing the drilling operation using the drilling blade 70 in the water distribution pipe 12 in the same manner as in the embodiment of FIG. Incidentally, the saddle 16 or 52 and the adapter 18 or 62 shown in the above-described embodiment may be integrally formed and fixed to the water distribution pipe 12, and the water tap 20 may be mounted on the upper part thereof. . Alternatively, the adapter 18 or 62 and the water faucet 20 may be integrated with each other and attached to the saddle 16 or 52.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an illustrative view showing one embodiment of the present invention; FIG. 2 is an illustrative view showing a double short tube structure of an adapter; FIG. 3 is an illustrative view showing a method of perforating a water distribution pipe; FIG. 4 is an illustrative view showing another embodiment of the present invention; FIG. 5 is an illustrative view showing another embodiment of the present invention; FIG. 6 is an illustrative view showing a conventional technique; FIG. 7 is an illustrative view showing a conventional technique; [Description of Signs] 10, 50, 60: Water tap with saddle 12: Water distribution pipe 14, Water supply pipe 16, 52 ... Saddle 18, 62 ... Adapter 20: Water tap 22 ... Outside short pipe 24, 68 ... Inner short Pipe 28 ... drilling blade 28b ... hexagonal hole 28c ... drilling blade 30 ... cap nut 32a ... cap 36 ... ball 42 ... water-stopping parts 44 ... hexagon wrench 56 ... gasket 64 ... resin layer

Continuation of front page (72) Inventor Hamada required 64 Ishizukita-cho, Sakai-shi, Osaka Kubota Co., Ltd. Inside vinyl pipe plant (56) References JP-A-8-49794 (JP, A) JP-A-5-87284 ( JP, A) JP-A-6-50491 (JP, A) JP-A-7-38886 (JP, U) JP-A-49-140720 (JP, U) JP-A-3-118391 (JP, U) JP 1974-3437 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16L 41/00-49/00

Claims (1)

(57) [Claim 1] A saddle attached to the outer surface of a pipe, a water faucet communicating with the pipe via the saddle and having a branch pipe connection, and a water faucet attached to the saddle. And an adapter having a double short tube structure of an outer short tube connecting the outer short tube and an inner short tube arranged inside the outer short tube, and a vertically movable portion via a screw portion provided on the inner short tube. A faucet with a saddle comprising a drilling knife to be arranged.